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#!/bin/sh
cfpid="${XDG_RUNTIME_DIR:-${TMPDIR:-/tmp}}/caffeine.pid"
usage()
{
cat <<- EOF
Usage: ${0##*/} [ -s ] [ -t timeout ]
Keep your computer awake
Options:
-s silent or quiet mode
-t <timeout in minutes>
EOF
}
note()
{
command -v notify-send > /dev/null &&
notify-send " caffeine" "$1"
}
die()
{
note "err: $1"
printf "\033[31;1merr: %b\033[0m\n" "$1" 1>&2
exit "${2:-1}"
}
dep_check()
{
: "${1:?}"
for dep; do
command -v "$dep" > /dev/null ||
die "${dep} not installed"
done
unset dep
}
set_menu()
{
if [ -n "$WAYLAND_DISPLAY" ]; then
menu="wmenu"
elif [ -n "$DISPLAY" ]; then
menu="dmenu"
else
die "can't be ran from tty, setup xorg or wayland"
fi
}
caf_time()
{
dep_check "$menu"
time="$(printf "1m\n3m\n5m\n10m\n15m\n30m" | "$menu" -p " sleep after ")"
echo "${time%m}"
}
drink()
{
# usage: drink <time in mins>
: "${1:?}"
disp=
dep_check swayidle wlr-randr brightnessctl swaylock
[ -s "$cfpid" ] &&
kill "$(cat "$cfpid")"
disp="$(wlr-randr | grep -om1 '^[^ ]*')"
swayidle \
timeout "$(($1 - 10))" "brightnessctl --save; brightnessctl set 10%-" \
resume "brightnessctl --restore" \
timeout "$(($1 - 5))" "swaylock" \
timeout "$1" "wlr-randr --output ${disp} --off" \
resume "wlr-randr --output ${disp} --on --adaptive-sync enabled" &
echo $! > "$cfpid"
[ "$silent" != true ] &&
note "$(uname -n) will sleep after $(($1 / 60)) m of inactivity"
}
########
# MAIN #
########
timeout=
silent=
menu=
set_menu
while getopts "t:sh" f; do
case "$f" in
t)
timeout="$OPTARG"
;;
s)
silent=true
;;
h)
usage
exit
;;
?)
printf "try '%s -h' for more information\n" "${0##*/}"
exit 1
;;
esac
done
[ -z "$timeout" ] &&
timeout="$(caf_time)"
[ -z "$timeout" ] &&
exit 1
[ "$((timeout))" -le 0 ] &&
die "invalid input time"
drink "$((timeout * 60))"
|
